Agenda of the symposium
"Fish and Diadromy in Europe : Ecology, Management,
Conservation"
Monday March 28th____________________________________________________________________________
5:00 pm – 7:00 pm beginning of the registration
in the main lobby of the "Cité mondiale"
Tuesday 29th March____________________________________________________________________________
8:00 am Registration - (continued)
9:00 am Welcome and Opening session
- Opening speech (Organizing committee, VIP)
- Introductive lecture: The conditional nature of diadromy
by Pr Julian Dodson (Université Laval, Québec, CANADA)
10:00 am Coffee Break
10:30 am Session I "Biogeography at Continental and Regional
scales"
Chairpersons: Philippe Keith (National Museum of Natural History, Paris)
and Robert Mc Dowall (National Institute of Water and Atmospheric Research,
New Zealand)
I 1 Diadromy, history and ecology: a question of scale.
by Dr Robert McDowall (NIWA, Christchurch, NEW ZEALAND)
I 2 Evolutionary history of lamprey paired species, Lampetra
fluviatilis (L.) and Lampetra planeri (Bloch) inferred from mitochondrial
DNA: timing and mode of divergence. by Ms Rute Espanhol (Museu
Nacional de História Natural da Universidade de Lisboa and Instituto
de Oceanografia, Lisbon, PORTUGAL), Bernardo R. Quintella, Pedro Raposo
Almeida & Maria Judite Alves.
I 3 Are Lampetra fluviatilis (L.) and L. planeri (Bloch)
two species? The answer using genetics and ecological implications.
by Dr Maria Urdaci (ENITA, Gradignan, FRANCE), Pierre Elie,
Catherine Taverny & Anne Marie Elie.
I 4 Colonization potential of a coastal region by migratory
brown trout (Salmo trutta L): the case of the Kerguelen Islands (TAAF).
1) Colonization dynamics and environmental conditions. by Mr
Patrick Davaine (INRA, Saint Pee sur Nivelle, FRANCE) & Edward Beall.
I 5 Colonization potential of a coastal region by migratory
brown trout (Salmo trutta L): the case of the Kerguelen Islands (TAAF).
(2). Genetic stucture of the populations after a dispersion and colonization
phase. by Dr Sophie Launey (INRA, Jouy en Josas, FRANCE), Patrick
Davaine, René Guyomard & Géraldine Brunet.
I 6 The return of wild salmon to the River Gudenå
by Mr Christian Dieperink (WaterFrame, Ry, DENMARK)
12:35 pm Lunch (panoramic restaurant of the Cité
mondiale, view on the Garonne river)
2:15 pm Session I – (continued)
I 7 Return of the twaite shad Alosa fallax (Lacépede,
1803) in the Baltic Sea: historical importance,intermediate decline
and recent recovery of the population. by Dr Ralf Thiel (German
Oceanographic Museum, Stralsund, GERMANY), Philip Riel, Renate Neumann,
Helmut M. Winkler, Uwe Böttcher, Tomas Gröhsler & Dietmar
Lill.
I 8 Aspects of Allis shad (Alosa alosa L.) and twaite shad
(Alosa fallax lacepede) biology in four Irish S.A.Cs.: status, evidence
of spawning and implications for S.A.C. designation. by Dr
James King (Central Fisheries Board, Swords, REPUBLIC OF IRELAND) &
William Roche.
3:00 pm Session II "Diadromous fish in Ecosystems"
Chairpersons: Ralph Thiel (German oceanographic museum, Germany) and
Pierre Dumont (Natural Resources Ministry, Qc, Canada)
II 1 Increased possibilities for diadromous fish populations
in the tidal Scheldt estuary (Belgium). by Dr Joachim Maes
(Katholieke Universiteit Leuven, Leuven, BELGIUM), Maarten Stevens,
& Johan Coeck.
II 2 The place of the diadromous fish assemblage in the
estuarine food web - The Gironde estuary as a case study. by
Dr Jérémy Lobry ( Cemagref, Cestas, FRANCE), Stéphanie
Pasquaud & Maria José Costa.
II 3 Hyporheic community respiration in river sediments
and egg-to-fry survival of sea trout in tributaries of the River Rhine,
Germany. by Dr Detlev Ingendahl (State Inland Agency for Ecology
of North Rhine-Westphalia, Kirchhundem, GERMANY), Dietrich Neumann &
Martin Pusch.
4:00 pm Coffee Break
4:30 pm Session III "Life history strategies, tactics
and adaptations 1"
Miran Aprahamian (Environment Agency, UK) and Patrick Williot (Cemagref,
Bordeaux)
III 1 Movement and dispersal in young stages - examples
from catadromous and anadromous species. by Dr Agnès
Bardonnet (INRA, St Pée sur Nivelle, FRANCE), Philippe Gaudin
& Jean-Luc Baglinière.
III 2 Temporal and spatial dynamics of the smolt migration
of atlantic salmon (Salmo salar). by Ms Catherine Brisson-Bonenfant
(Centre interuniversitaire de recherche sur le saumon Atlantique, Quebec,
CANADA) Julian Dodson & Jean-François Bourque.
III 3 Inputs of behavioural experiments to the individual-based
modelling of glass eel estuarine migration by Mr Patrick Lambert
(Cemagref, Cestas, FRANCE), Valérie Bolliet & Agnès
Bardonnet.
III 4 The implications of facultative catadromy in the
European eel at the drainage basin level by Dr Anthony Bark
(King’s College London, London, UNITED KINGDOM) Beth Williams
& Brian Knights.
III 5 Impact of river network topology on European eel
population dynamics estimated with an individual-based model. by
Mr Nicolas Dumoulin (Cemagref, Aubière, FRANCE), Patrick Lambert,
Thierry Faure & Éric Rochard.
III 6 Estimation of downstream migration fluxes of silver
eels from various systems: A methodological review and biological implications.
by Pr Eric Feunteun (Université de La Rochelle, La Rochelle,
FRANCE), Anthony Acou, Pauline Boury & Gaelle Gabrielle.
7:00 pm Social Poster session.
Programme : see Appendix
8:30 pm Adjournment
Wednesday March 30th_____________________________________________________________________________
8:30 am Session IV "Life history strategies, tactics and
adaptations 2"
Chairpersons: Karin Limburg (State University of New York, Syracuse,
USA) and Etienne Prévost (INRA, St Pée sur Nivelle, France)
IV 1 Long-distance fish migration: more than a matter of
getting from here to there. by Dr Karin Limburg (SUNY College
of Environmental Science & Forestry, Syracuse, USA)
IV 2 Analysis of the level of homing of Allis shad (Alosa
alosa) in the Garonne - Dordogne basin (south-west France) using otolith
chemistry by Dr Javier Tomas (Mediterranean Institute for Advanced
Studies (CSIC-UIB), Esporles, SPAIN), Patrick Lambert, Miquel Palmer,
Roger Cottier & Eric Rochard.
IV 3 Ecological versatility in eels : tactics of habitat
use of the Gironde estuary, a large tidal estuary, implications at the
population level. by Ms Françoise Daverat (Cemagref,
Cestas, FRANCE), Javier Tomas , Michel Lahaye & Pierre Elie.
IV 4 Where do all the silver eels come from? New results
from the Baltic Sea. by Dr Håkan Wickström (National
Board of Fisheries, Drottningholm, SWEDEN)
IV 5 Alternative migratory behavior of American eel (Anguilla
rostrata) in the Saint John River, Gaspé (Quebec). by
Ms Isabel Thibault (Université Laval, Québec, CANADA),
Yoshi Iizuka, Wann-Nian Tzeng, Jen-Chieh Shiao, Julian Dodson &
François Caron.
10:15 am Coffee break
10:45 am Session IV – (Continued)
IV 6 Using genetic with stable isotope analyses to investigate
hybridization between Atlantic salmon, sea-run and stream resident brown
trout in a small stream. by Dr Jean-Marc Roussel from INRA,
Rennes, FRANCE) Katia Charles, Jean-Luc Baglinière, René
Guyomard & Dominique Ombredane.
IV 7 Genetics and ecology of amphidromous gobiids from
Mascarene Islands supplying economically important post-larval fisheries.
by Mr Thierry Hoareau (Université de La Réunion, Saint
Denis, La Réunion, FRANCE), Patrick Berrebi, Ghislaine Cattaneo-Berrebi,
Pierre Valade, Jean-François Ricou, Pierre Bosc & Raymonde
Lecomte-Finiger.
IV 8 Change in life histories of migratory salmonids from
the River Dee, Wales. by Dr Miran Aprahamian (Environment Agency,
Warrington, UNITED KINGDOM), Ian Davidson & Richard Cove.
IV 9 Is the run timing inherited in Atlantic salmon? Previous
spawners ascend earlier than they did on their first spawning migration
by Dr Panu Orell (Finnish Game and Fisheries Research Institute,
Oulu, FINLAND) & Eero Niemelä.
IV 10 Spawning migration of salmonids (Salmo SPP.) in two
northern Swedish rivers with special reference to postspawning migration
of sea trout (Salmo Trutta L.). by Mr Johan Östergren
(Swedish University of Agricultural Sciences, Umeå, SWEDEN), Hans
Lundqvist & Skip McKinnell
12:35 pm Lunch (panoramic restaurant of the Cité
mondiale)
2:15 pm Session V "Life history strategies, tactics and
adaptations 3"
Chairpersons: Bror Jonsson (NINA, Norway) and Guido Van den Thillart
(University of Leiden, The Netherlands)
V 1 An in situ experiment to test the importance of body
size and condition for downstream migration in anadromous Arctic charr,
Salvelinus alpinus. by Dr Martin-A. Svenning (Norwegian Institute
for Nature Research, Tromsø, NORWAY) & Malcolm Elliott.
V 2 Lipid energy reserves influence life history decisions
of anadromous Atlantic salmon and brown trout. by Pr Bror Jonsson
from Norwegian Institute for Nature Research, Oslo, NORWAY) & Nina
Jonsson.
V 3 The endocrine control of the eel (Anguilla anguilla)
migration by Mr Eric Edeline from Cemagref, Cestas, FRANCE),
Pierre Elie, Cédric Briand, Sylvie Dufour, Valérie Bolliet
& Agnès Bardonnet.
V 4 Calcitonin-gene related peptide : a new hormone involved
in ionoregulation in teleost. by Ms Anne-Gaëlle Lafont
(Muséum National d’Histoire Naturelle, Concarneau, FRANCE),
Martine Fouchereau-Péron & Sylvie Dufour.
V 5 Silvering process and pressure resistance in the eel:
regulation aspect. by Ms Aline Amerand (UBO- UFR Médecine,
Brest, France), Aurélie Vettier, Philippe Sebert & Christine
Moisan.
4:00 pm Coffee Break
4:30 pm Session V (Continued)
V 6 Mimicking environmental conditions of European eel
oceanic migration: Effects of exposure to high hydrostatic pressure
on the brain-pituitary-gonad axis. by Ms Marie-Emilie Sebert
from Museum National d’ Histoire Naturelle, Paris, FRANCE) &
Aurélie Vettier.
V 7 Swimming performance and behaviour of upriver-migrating
adult sea lamprey (Petromyzon marinus L.) assessed in laboratory by
electromyogram telemetry. by Dr Pedro Almeida (Universidade
de Évora, Évora, PORTUGAL), Inês Póvoa &
Bernardo Quintella.
V 8 Early Sexual Maturation in Atlantic Salmon Male Parr:
Role of Growth Regulating Factors in the Onset of Maturation. by
Dr Monika Schmitz (Swedish University of Agricultural Sciences, Umea,
SWEDEN) & Gersende Maugars
V 9 Dopaminergic inhibition of eel reproduction: ontogeny
and regulation by sexual steroid hormones. by Dr Finn-Arne
Weltzien ( Muséum National d’Histoire Naturelle, Paris,
FRANCE), Sylvie Dufour , Bernadette Vidal, Catherine Pasqualini, Sylvie
Baloche, Nadine Le Belle & Philippe Vernier.
6:00 Adjournment
Thursday March 31st_________________________________________________________________________________
8:30 am Session VI "Human activities and Diadromous fish
1"
Chairpersons: Henriette Jager (Oak Ridge national laboratory, USA) and
Hans Lundqvist (SLU, Suède)
VI 1 Essai sur l’histoire de l’esturgeon Acipenser
sturio, ou comment utiliser les enseignements d’un déclin
dramatique. by Dr Patrick Williot (Cemagref , Cestas, FRANCE)
& Gérard Castelnaud.
VI 2 Restoration of American Shad to the Susquehanna River,
USA. by Mr Richard St. Pierre (U. S. Fish and Wildlife Service,
Harrisburg, USA).
VI 3 The allis shad (Alosa alosa) population of the River
Rhine: Background, status and perspectives for a restoration programme.
by Dr Peter Beeck (University of Cologne, Zooological Institute,
Cologne, GERMANY), Philippe Jatteau, Barbara Klee & Detlev Ingendahl.
VI 4 Shad life histories and mercury contamination
by Ms Aude Lochet (Cemagref, Cestas, FRANCE), Régine Maury-Brachet,
Claire Poirier & Eric Rochard.
10:00 am Coffee Break
10:30 am Session VI (Continued)
VI 5 Chutes and ladders and other games we play with rivers
by Dr Henriette (Yetta) Jager (Oak Ridge National Laboratory,
Oak Ridge, USA)
VI 6 Passage problems for upstream & downstream migrating
anadromous salmonids (Salmo salar & S. trutta) in two flow controlled
northern Swedish rivers. by Dr Hans Lundqvist (Swedish Univ
of Agricultural Sciences, Umeå, SWEDEN), Peter Rivinoja, Kjell
Leonardsson, Johan Östergren, Jaan Kiviloog, Lars Bergdahl, Skip
McKinnell, Lars Brydsten.
VI 7 Factors influencing weir passages during the upstream
migration of adult Atlantic salmon (Salmo salar L.) in two French rivers.
by Mr Olivier Croze (Cemagref/GHAAPPE, Toulouse, France), Frédérique
Bau, Thomas Breinig, Hugues Jourdan & Angéline Sénécal.
VI 8 Survival of juvenile salmonids through turbines at
Columbia River dams. by Mr John Ferguson (NOAA Fisheries NW
Fisheries Science Center, Seattle, USA).
VI 9 Field experiments on the effects of hydropeaking on
Atlantic salmon (Salmo salar) in the Dordogne basin (France).
by Dr Matthieu Chanseau (MIGADO, Le Passage, France), Jean-marc Lascaux
& Michel Larinier.
VI 10 The influence of migration barriers on the upstream
migration of diadromous fish in the river Scheldt (Belgium).
by Mr David Buysse (Institute of Nature Conservation, Brussels, Belgium),
Maarten Stevens, Johan Coeck & Joachim Maes.
12:35 pm Lunch (panoramic restaurant of the Cité
mondiale)
2:15 pm Session VII "Human activities and Diadromous fish
2" (Management advice)
Chairpersons: Pedro Almeida (Oceanographic Institute, Lisbon, Portugal)
and Willem Dekker (RIVO, The Netherlands)
VII 1 The evolution and selective advantages of facultative
catadromy in anguillid eels. by Dr Brian Knights (University
of Westminster, London, UNITED KINGDOM), Tony Bark & Beth Williams.
VII 2 Biology and Management of the catadromous European
Eel Anguilla anguilla L. in the Lower River Shannon, Ireland. by
Dr William O’Connor (Ecofact Environmental Consultants Ltd., Limerick,
IRELAND) & T.K. 2 McCarthy.
VII 3 Management of Silver Eel: Human Impact on Downstream
Migrating Eel in the River Meuse. by Mr Maarten Bruijs (KEMA
Power Generation & Sustainables, Arnhem, THE NETHERLANDS ) Ulrich
Schwevers & Beate Adam.
VII 4 Predicting spawner escapement of the European eel over
time after management actions. by Dr Marten Astrom (National
Board of Fisheries, Drottningholm, SWEDEN) & Håkan Wickström.
VII 5 Response of population parameters of Atlantic salmon
in the sub-arctic Teno river to the major fishing regulations and environmental
effects. by Dr Eero Niemelä (Finnish Game and Fisheries
Research Institute, Oulu, FINLAND), Jaakko Erkinaro, Sturla Brörs,
Markku Julkunen, Brian Dempson, Martin Svenning, Panu Orell, Maija Länsman
& Esa Hassinen.
VII 6 A theoretic decision analysis framework to help managing
Atlantic salmon fisheries by Dr Etienne Rivot (INRA / AGROCAMPUS
Rennes, Rennes, FRANCE), Etienne Prévost, Eric Parent, Jean-Pierre
Porcher & Jacques Dumas.
4:00 pm Coffee Break
4:30 pm Conference closing session (organizing committee,
VIP)
5:30 pm Adjournment
Evening: Symposium Banquet in the
"Café maritime" restaurant
Friday April 1st____________________________________________________________________________________
8:30 am Session VII: MINI Symposium "Estimation of the
Reproduction capacity of European eel".
This mini symposium provides the first overview of a 3-year EU-project
on eel research. The research was aimed at silvering, maturation, performance,
and genetic diversity of the European eel population. The silvering
process is hardly understood, and parameters for silvering were thus
far rather subjective. Analyses of many morphological and physiological
parameters give a strong basis for silvering, which is clearly a continuous
process. New insight is obtained from artificial and physical stimulation
on maturation. Swimming and high pressure both result in important hormonal
responses. Changes in genetic characters were studied in relation to
distribution over different locations. A novel experiment was performed
in an eel farm showing selection during growth. Most of the work that
will be presented is not yet published.
08:30 am -08:40 am
Estimation of the reproduction capacity of European eel. (Introduction)
by Guido Van den Thillart ((Institute of Evolutionary and Ecological
Sciences, Integrative Zoology, Leiden, NETHERLANDS)
08:40 am -09:10 am 
Silvering of European eels; seasonal changes of morphological
and physiological parameters. by Caroline Durif (Cemagref,
Cestas, FRANCE/Institute of Marine Research, Austevoll, NORWAY), Pierre
Elie.
09:10 am -09:40 am
Energetics of eel migration; swim fitness and swim capacity.
by Guido Van den Thillart (Institute of Evolutionary and Ecological
Sciences, Integrative Zoology, Leiden, NETHERLANDS), Arjan Palstra,
Vincent Van Ginneken, Csaba Székely.
09:40 am -10:10 am
Natural and artificial induction of maturation of european eel.
by Arjan Palstra (Institute Biology Leiden, Leiden, NETHERLANDS), Sylvie
Dufour, Guido Van den Thillart, Vincent Van Ginneken.
10:10 am -10:40 am
High pressure resistance and adaptation of European eels. by
Philippe Sebert (UBO- UFR Médecine, Brest, FRANCE)
10:40 am -11:00 am coffee break
11:00 am -11:30 am
Suppressing maturation as a requirement for eel long distance
migration : neuroendocrine mechanisms and implications for induced maturation.
by Sylvie Dufour (Muséum National d’Histoire Naturelle,
Paris, FRANCE)
11:30 am -12:00 pm
Possible causes for the decline of European eel population.
by Vincent van Ginneken (Integrative Zoology van der Klaauw Laboratories,
Leiden, NETHERLANDS), Guido Van den Thillart, Arjan Palstra
12:00 pm -12:30 pm
Genetic variability of the European eel population.
by Filip Volckaert (Katholieke University of Leuven BELGIUM), Joachim
Maes, JM Pujolar.
12:30 pm -12:40 pm
Reproduction capacity of European eels (Synthesis).
by Sylvie Dufour (Muséum National d’Histoire Naturelle,
Paris, FRANCE)
1:45 pm - Optional
technical visit
Cruise on the Gironde estuary with a guide from the "Oceans"
association.
Programme of the poster session (March
29, 7:00 pm)____________________________________________________
Theme "Biogeography at Continental
and Regional scales"
Allis shad Alosa alosa (Linnaeus, 1758) in the Baltic
Sea: occurrence and morphometric characteristics in comparison with
twaite shad Alosa fallax (Lacepede, 1803). By Helmut Winkler(
Rostock University, Rostock, GERMANY), Krzystof Skora, Rimas Repecka.
Recent studies of Sea lamprey (Petromyzon marinus L.) in
Irish rivers: findings and conservation implications. by Dr
James King (Central Fisheries Board, Swords, REPUBLIC OF IRELAND), William
O’Connor, Suzanne Linnane, Lynda Connor, David Lyons, Bridget
Lehane, Fiona Kelly & Ferdia Marnell.
Distribution of river and sea lampreys in German waters
of the Baltic Sea. by Dr Ralf Thiel (German Oceanographic Museum,
Stralsund, GERMANY), Philip Riel, Renate Neumann, Helmut M. Winkler,
Uwe Böttcher, Tomas Gröhsler & Dietmar Lill.
Biometric analysis of geographic variation of sea lamprey
ammocoetes in the main Portuguese river basins. by Mr Gonçalo
Tomaz (Instituto de Oceanografia,Lisboa, PORTUGAL) Bernardo R. Quintella,
Pedro Raposo Almeida & Nuno Andrade.
Migration dynamics of clupeids in the Scheldt estuary:
a stable isotope approach. by Mr Jef Guelinckx (Katholieke
Universiteit Leuven, Leuven, BELGIUM), Joachim Maes, Loreto De Brabandere,
Frank Dehairs & Frans Ollevier.
Sturgeon reintroduction in the Rhone river: problematic
and preliminary works. by Mr Jean-Yves Menella (Association
Migrateurs Rhône-Méditerranée, Arles, France) Laurent
Brosse, Mario Lepage, Nathalie Desse-Berset & Patrick Berrebi.
Theme "Diadromous fish in Ecosystems"
Habitat preferences of larval Petromyzon marinus (L.)
and Lampetra sp. in rivers of Gironde Dordogne basin.
by Dr Catherine Taverny (Cemagref, Cestas, FRANCE), Charles Roqueplo,
Mario Lepage & Isabelle Ortusi.
A 12-year study of the upstream migration of Anguilla anguilla
in a fish-pass in the River Meuse reveals a dramatic decrease of the
stock in Belgium. by Dr Jean Claude Philippart (University
of Liège, Tihange, BELGIUM), Damien Sonny & Michael Ovidio.
Comparative study on the methodologies used for the determination
of age and growth in sea lamprey ammocoetes (Petromyzon marinus L.,
1758) in the Mondego river basin Portugal. by Mr Nuno O. Andrade
from Instituto de Oceanografia, Lisboa, PORTUGAL), Bernardo R. Quintella
& Pedro Raposo Almeida.
Factors ruling distribution and abundance of the European
eel, Anguilla anguilla, in the Mondego river (Portugal) by
Pr Isabel Domingos (Universidade de Lisboa, Faculdade de Ciências/Instituto
de Oceanografia, Lisboa, PORTUGAL) & José Costa.
Annual variation in spatial and temporal migration of wild
Atlantic salmon smolts determined from a video camera array in the sub-Arctic
River Tana. by Dr Martin-A. Svenning (Norwegian Institute for
Nature Research, Tromsø, NORWAY), Brian Dempson, Nigel Yoccoz,
Panu Orell, Jan Davidsen & Eero Niemelä.
Migration and growth of tagged summer Vistula sea trout
smolts released into the lower Vistula River. by Pr Ryszard
Bartel (Inland Fisheries Institute, Gdansk, POLAND) & Marzena Haluch.
Relation between continental hydrosystems and silver eels
fractions: a typological analysis needed for eel stock management.
by Ms Pauline Boury (Université de La Rochelle, La Rochelle,
FRANCE), Eric Feunteun, Anthony Acou & Gaelle Gabriel.
Habitat selection of ammocoetes belonging to the genus
Lampetra in the Tagus River basin,Portugal by Mr João
Ferreira (Instituto de Oceanografia, Lisbon, PORTUGAL), Bernardo R.
Quintella, Rute Espanhol, Gonçalo Tomaz & Pedro Almeida.
Influence of developmental environment on natural stream
adaptation in Atlantic salmon, Salmo salar L., juveniles. by
Dr Michel Héland (INRA, Saint Pée sur Nivelle, FRANCE),
Edward Beall & Michel Parade.
Lampreys of Iberian Peninsula: distribution and conservation
status by Ms Rute Espanhol (Museu Nacional de História
Natural da Universidade de Lisboa and Instituto de Oceanografia, Lisbon,
PORTUGAL), Bernardo R. Quintella, Nuno Andrade, João Ferreira,
Sara Pinela, Inês Póvoa, Maria Judite Alves & Pedro
Raposo Almeida.
Population size of the silver eel (Anguilla anguilla) population
of the whole River Rhine catchment in 2004: a pilot mark-recapture study
by Mr Jan G.P. Klein Breteler (Organisation for the Improvement of Inland
Fisheries, Nieuwegein, NETHERLANDS), Detlev Ingendahl, Lothar Jörgensen,
Stefan Staas & Jost Borcherding.
Sea lampreys (Petromyzon marinus) upstream migration and
the impact of dam destruction on catchment colonisation. by
Mr Julien Cucherousset (Université de Rennes 1, UMR ECOBIO, Rennes,
FRANCE), Richard Sabatie & Nicolas Jeannot.
Study of statoliths of adult migrating lampreys ( Petromyzon
marinus and Lampetra fluviatilis) for the estimation of sea age.
by Dr Catherine Taverny (Cemagref, Cestas, FRANCE), Françoise
Daverat & Isabelle Ortusi.
Theme "Life history strategies, tactics and adaptations"
Could variability in migration and reproduction strategies
of Atlantic salmon be related to global climate changes? by
Dr Edward Beall (INRA, Saint Pée sur Nivelle, FRANCE), Philippe
Gaudin, Jacques Dumas, Alexandre Derrez & Iker Castege.
The increase of female silver eels (Anguilla anguilla)
proportion: a possible response to the general decline of the European
eel recruitment. by Dr Pascal Lafaille (Fish Pass, Chantepie,
FRANCE), Jérôme Guillouët, Anthony Acou, Anthoine
Legault.
Dispersion and micro-habitat use in young shad larvae (Alosa
alosa L.) under experimental conditions. by Mr Philippe Jatteau
(Cemagref, Cestas, FRANCE) & Agnès Bardonnet
Photoresponse of Allis shad (Alosa alosa L.) larvae: new
insight into shad larvae behaviour by Mr Philippe
Jatteau (Cemagref, Cestas, FRANCE) ,Thierry Rouault & Agnès
Bardonnet.
Aspects on the ecology of the sea lamprey (Petromyzon marinus
L., 1758) larvae in Portugal: feeding, habitat selection, movement patterns,
age and growth. by Dr Pedro Raposo de Almeida (Unidade de Biologia
da Conservação, Universidade de Évora and Instituto
de Oceanografia, Évora, PORTUGAL), Bernardo R. Quintella &
Nuno De Oliveira Andrade.
Habitat selection by sea lamprey ammocoetes’ age-classes:
laboratorial assessment of their burrowing performance. by
Mr Bernardo Quintella (Instituto de Oceanografia, Lisboa, PORTUGAL),
Nuno Andrade, Nuno Dias & Pedro R. Almeida.
Silvering process and pressure resistance in the eel: metabolic
aspect. by Ms Aurélie Vettier (UBO- UFR Médecine,
Brest Cedex3, FRANCE), Philippe Sebert, Christine Moisan, Aline Amerand
Elemental composition in otoliths of Japanese eels, Anguilla
japonica: effects of ontogeny and habitat use. by Dr Wann-Nian
Tzeng (National Taiwan University, Taipei, TAIWAN), Chia-Hui Wang, Chen-Feng
You, Mon-Dar Lee & Yoshi Iizuka.
Migration between freshwater and estuary of juvenile American
eels Anguilla rostrata as revealed by otolith microchemistry.
by Dr Brian Jessop (Bedford Institute of Oceanography, Dartmouth, CANADA),
Yoshi Iizuka, Wann-Nian Tzeng, Jen-Chieh Shiao.
Salinity tolerance in young Allis shad larvae (Alosa alosa
L.). by Dr Agnès Bardonnet (INRA, St Pée sur
Nivelle, FRANCE), Emmanuel Huchet, Frédéric Lange, Jacques
Rives & Philippe Jatteau.
Evolutionary Patterns in Six Microsatellite loci of Freshwater
Eels. by Dr Mei-Chen Tseng (National Pingtung University of
Technology & Science, Pingtung, TAIWAN), Chaolun Allen Chen, Wann-Nian
Tzeng, Sin-Che Lee.
Genetic variation among brown trout migratory and resident
phenotypes in the recent colonized hydrographic system of Kerguelen
islands. by Mr René Guyomard INRA, Jouy en Josas, France),
Patrick Davaine & Katia Charles.
Partial migration of landlocked trout by Pr Ivan
Olsson (Karlstad University, Karlstadt, SWEDEN) & Larry Greenberg.
Relationship between smoltification and maturity of sea
trout, Salmo trutta m.trutta L., in a hatchery. by Dr Piotr
Debowski (Inland Fishery Institute, Gdansk, POLAND), Stefan Dobosz,
Joanna Grudniewska, & Henryk Kuzminski.
Histological comparison of the ovary development stage
in farmed and wild European eels, and evolution of gonad development
in hormone-treated fish. by Mr Ignacio Jauralde (Universidad
Politécnica de Valencia, Valencia , SPAIN), Luz Pérez,
Daniel L. Garzón, David S. Peñaranda, Silvia Martínez-Llorens,
Ana Tomás, Miguel Jover & Juan F. Asturiano.
Interannual variability in the recruitment of young of
the year of Allis shad in the Loire River by Dr Catherine Boisneau
(Université de Tours, Tours, FRANCE), Florentina Moatar, Mathieu
Bodin & Philippe Boisneau .
Reproduction biology and ecology, and first larva’s
stages of the bouche-rondes Sicyopterus lagocephalus (Pallas 1770) and
Cotylopus acutipinnis (Guichenot 1863) from La Reunion island.
by Mr Pierre Valade (Association Réunionnaise de Développement
de l’Aquaculture, Etang Salé, FRANCE), Jean-François
Ricou, Pierre Bosc, Henri Grondin & Puy Lim.
Sea lamprey (Petromyzon marinus) spawning migration in Portuguese river
basins studied by telemetry techniques by Mr Pedro Almeida
(Universidade de Évora, Évora, PORTUGAL), Bernardo Quintella,
Nuno Andrade & Inês Póvoa.
Silver eel migration pattern in the Baltic Sea. by
Mr Niklas Sjöberg (Institute of Freshwater Research Drottningholm,
Drottningholm, SWEDEN), Erik Petersson & Håkan Wickström.
Theme "Human activities and
Diadromous fish"
An original eco-anthropological approach to identify a
diadromous species that could materialise the recovery of the water
and habitat quality within the Seine basin. by Dr Patricia
Pellegrini (National Museum of Natural History, Paris, FRANCE), Mélanie
Béguer, Julie Marchal, Jean-Luc Baglinière, Dominique
Ombredane & Eric Rochard.
Establishement of a eel board within the river catchment
Rhone-Mediterranean-Corsica: the case study of a glass eel monitoring
recruitment to a lagoon system within the Rhone delta by Mr
Nicolas Auphan (Association Migrateurs Rhone Méditerranée,
Arles, FRANCE), Alain Crivelli, Marc Barral & Jean-Yves Menella.
Assessment of yellow European eels populations trends:
toward the establishment of a common methodology? by Mr Emilien
Lasne (Université de Rennes 1, Rennes, FRANCE), Pascal Laffaille
& Christian Rigaud.
Modelling the spatiotemporal variations of eels abundance
in small catchments: interest for eel stock assessment. by
Mr Anthony Acou (Université de Rennes 1, Rennes, France), Etienne
Rivot, Pascal Laffaille & Eric Feunteun.
Environmental factors influencing the immigration of the
catadromous European Eel Anguilla anguilla L. to the Lower River Shannon,
Ireland. by Dr T.K. McCarthy (National University of Ireland,
Galway, IRELAND) & William O’Connor.
Diadromous species in French inland waters: comparisons
and evolution of restored data series (1978-2002) and of recent landings
and fishing efforts (1999-2002). by Dr Gérard Castelnaud
(Cemagref, Cestas, FRANCE), Thomas Changeux, Alde Grandpierre &
Laurent Beaulaton.
Long term and seasonal variation in rod and net catches
in a large subarctic salmon river. by Dr Eero Niemelä
( Finnish Game and Fisheries Research Institute, Oulu, FINLAND), Jaakko
Erkinaro, Sturla Brörs, Brian Dempson, Markku Julkunen, Panu Orell,
Martin Svenning, Maija Länsman & Esa Hassinen.
Measuring the impact of glass eel fishery on fry mortality
of accompanying ichthyofauna. by Dr Enric Gisbert (Institut
de Recerca i Tecnologia Agroalimentaries (IRTA), Sant Carles de la Ràpita,
SPAIN), Miquel A. Lopez, Maria García, Josep M. Queral, Nati
Franch & Jordi Roig.
The reconstruction of an Atlantic salmon population in
the Belgian River Meuse basin. by Dr Jean Claude Philippart
(University of Liège, Tihange, BELGIUM), Michael Ovidio, Vincent
Frank, Colette Conjearts, Pierre Gerard, Alain Gillet & Jean Claude
Micha.
Conservation of Atlantic salmon: new biological data are
required to improve restocking in large European rivers. The example
of the Loire. by Mr Patrick Martin from Fondation Saumon, Chanteuges,
FRANCE), Lucien Jonard , Jocelyn Rancon , Eric Verspoor , Jack Falcon
, Gilles Boeuf & Sylvie Dufour.
Etablissement d’un stock ex-situ de l’esturgeon
européen Acipenser sturio en danger critique de disparition :
Gestion des données by Mr Vincent Bouju (Cemagref, Cestas,
FRANCE), Thierry Rouault, Patrick Williot & Jacques Massé.
Sturgeon in Sweden - past, present and future
by Dr Susanna Pakkasmaa ( National Board of Fisheries, Drottningholm,
SWEDEN), Torbjörn Järvi, Erik Petersson & Jonas Pettersson.
Discrimination between restocked and naturally recruited
European eels Anguilla anguilla by otolith Sr:Ca ratio analysis. by
Dr Jen-Chieh Shiao (Institute of Zoology, Academia Sinica, Taipei, TAIWAN)
Linas Lozys, Yoshiyuki Iizuka & Wann-Nian Tzeng.
Polycontamination of Eels in the Gironde estuary (Metals
and Organic pollutants). by
Ms Nathalie Tapie (Université Bordeaux 1, Talence, FRANCE), Francoise
Daverat, Régine Maury Brachet, Pierre Elie, Alain Boudou &
Hélène Budzinski.
Impacts of the Belver dam on the European eel, Anguilla
anguilla (L., 1758), population (River Tagus, Portugal) by
Dr José Lino Costa from Universidade de Lisboa, Faculdade de
Ciências, Lisbon, Portugal), Eric Feunteun, Carlos Assis, Pedro
Raposao Almeida, Francisco Moreira, Isabel Domingos, Maria José
Costa.
Influence of a siphon on the upstream migration of fish
on the Kleine nete, Belgium. by Ms Hilde Verbiest (Institute
for Forestry and Game Management, Groenendaal (Hoeilaart), BELGIUM)
Caroline Geeraerts & Claude Belpaire.
Connectivity and habitat restoration in rivers helps populations
of salmonids? by Dr Hans Lundqvist (Swedish Univ. of Agricultural
Sciences, Umeå, SWEDEN), Peter Rivinoja, Kjell Leonardsson, Johan
Östergren, Jaan Kiviloog, Lars Bergdahl, Skip McKinnell & Lars
Brydsten,
Programme de restauration des voies de migration de l’Alose
sur la Vilaine au XIX siècle. by Mr Antoine LEGAULT
(Fish Pass, Chantepie, France) & Jean René CADIOU.
Natural-like fishways for re-establishing connectivity,
by Mr Olle Calles (Karlstad University, Karlstad, Sweden) & Larry
Greenberg.
Making in-river structures passable for migratory fish.
by Ms Josee Peress (Environment Agency, Exminster, UNITED KINGDOM)
